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A method for identifying consistency of material

A consistent and consistent technology, applied in the field of identifying the consistency of materials, can solve the problems of unrecognizable additives, difficult to help identify different materials, difficult to provide full component analysis of plastics, etc., to eliminate hidden dangers and ensure the quality of parts.

Pending Publication Date: 2020-08-11
DAIMLER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method cannot identify the various additives that may exist in the plastic, so it is difficult to provide a full composition analysis of the plastic and thus difficult to help identify different materials of the same brand

Method used

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  • A method for identifying consistency of material
  • A method for identifying consistency of material
  • A method for identifying consistency of material

Examples

Experimental program
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Effect test

example

[0075]Three samples A, B and C are provided to be compared. Sample C as a standard sample is provided by the raw material supplier, which is made of a specific PC-ABS, while samples A and B as samples to be tested are respectively taken from the warehouse of the automobile factory and prepared for assembly The plastic parts of the new car and the plastic parts from the parts factory that have not yet been sent to the warehouse of the automobile factory, these two samples A and B claim to be made of the same material as sample C PC-ABS.

[0076] Next, use the method according to the invention to identify whether the materials of samples A, B and C are highly consistent.

[0077] First, samples A, B, and C are cut so that the size of the cut samples meets the size requirements of the subsequent testing equipment.

[0078] Then, samples A, B, and C were respectively put into a Fourier transform infrared spectrometer to perform infrared spectrum analysis, thereby obtaining respec...

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PUM

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Abstract

The invention relates to the field of material analysis, in particular to analysis and identification of plastic materials of vehicle parts. A method for identifying the consistency of materials comprises at least the following steps: i) providing at least two samples to be compared; ii) acquiring at least one characteristic curve of each of the at least two samples; iii) performing a qualitativeand / or quantitative analysis of at least one component of the at least two samples; and iv) determining whether the materials of the at least two samples are consistent based on the characteristic curve acquired in step ii) and the component analysis result in step iii). The method has the advantages that small differences among materials in chemical composition can be identified, the materials with the same trademark but different formulas can be accurately identified, the method is used for detecting whether the materials are replaced or not, and the management and control requirements of vehicle enterprises on part quality are met.

Description

technical field [0001] The present invention relates to a method for identifying the identity of a material. Background technique [0002] In the process of vehicle development and manufacturing, there will be such a problem: although the plastic materials from different material suppliers are marked with the same brand, the actual formula will be different. This resulted in quantified post-production parts suppliers offering a part of a material that was not the material that had previously tested and passed the test, even though the two materials of manufacture had the same grade. After the materials used in actual mass production are replaced, if they cannot meet the standards of the previously tested materials, it will leave a safety hazard for the vehicle. [0003] For this reason, a method that can discriminate between different plastic materials with the same grade is required. However, in the existing technology, the traditional material consistency analysis techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/44G01N21/3563G01N25/20G01N23/223G01N23/207G01N23/20091G01N21/64G01N5/00G01N30/02G01N30/06
CPCG01N5/00G01N21/3563G01N21/64G01N23/20091G01N23/207G01N23/223G01N25/20G01N30/02G01N30/06G01N33/442G01N2021/3572G01N2223/1016
Inventor 张磊
Owner DAIMLER AG
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